Hookup the page-indicator and progress-bar elements in the PDF extension.

chrome/browser/resources/pdf/viewport.js

 // Copyright 2013 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 /**
  * Predefined zoom factors to be used when zooming in/out. These are in
  * ascending order.
  */
 var ZOOM_FACTORS = [0.25, 0.333, 0.5, 0.666, 0.75, 0.9, 1.0,
                     1.1, 1.25, 1.5, 1.75, 2.0, 2.5, 3.0, 4.0, 5.0];
@@ skipping 109 matching lines @@
       (currentScrollPos[1] * newZoom) - this.window_.innerHeight / 2.0);
 };
 
 /**
  * @private
  * Called when the viewport should be updated.
  */
 Viewport.prototype.updateViewport_ = function() {
   // Shift the toolbar so that it doesn't move when the scrollbars display
   var needsScrollbars = this.documentHasScrollbars();
+  var page = this.getMostVisiblePage();
   this.viewportChangedCallback_(this.zoom_,
                                 this.window_.pageXOffset,
                                 this.window_.pageYOffset,
                                 this.scrollbarWidth_,
-                                needsScrollbars);
+                                needsScrollbars,
+                                page);
 };
 
 /**
  * @private
  * Returns a rect representing the current viewport.
  * @return {dictionary} a rect representing the current viewport.
  */
 Viewport.prototype.getCurrentViewportRect_ = function() {
   return {
     'x': this.window_.pageXOffset / this.zoom_,
@@ skipping 148 matching lines @@
 /**
  * Set the dimensions of the document.
  * @param {dictionary} documentDimensions the dimensions of the document
  */
 Viewport.prototype.setDocumentDimensions = function(documentDimensions) {
   this.documentDimensions_ = documentDimensions;
   this.pageDimensions_ = this.documentDimensions_.pageDimensions;
   this.contentSizeChanged_();
   this.updateViewport_();
 };